What is Leverage?
Leverage is a tool that allows you to trade using borrowed funds from the broker, thereby amplifying your buying power. With leverage, you can open much larger positions with a small initial capital. For example, if you deposit $100 and the leverage is 1:100, you can control a position worth $10,000. This means you only need to provide 1% of the total position value as the initial margin. This mechanism can increase your potential profits, but it also amplifies the risks if the market moves against you.
Initial Margin and Maintenance Margin
Margin is the capital you must deposit as collateral to open and maintain a leveraged position. The initial margin is the money needed to open the trade, while the maintenance margin is the minimum you must keep to maintain the position open.
For example, imagine you want to open a position of $10,000 using 1:100 leverage. In this case, the initial margin would be 10,000 / 100 = $100 (that is, 1% of the position size). To illustrate:
- Position: $10,000
- Leverage: 1:100
- Required initial margin: $100 (1%)
In general, the higher the leverage, the lower the percentage margin required. For example:
- Leverage 1:50 → margin required 2% ($200 for $10,000)
- Leverage 1:100 → margin required 1% ($100)
- Leverage 1:200 → margin required 0.5% ($50)
The following table illustrates these examples with different leverage levels and required margin.
If the value of your trade moves against you, your equity will decrease. You must keep your equity above the maintenance margin. If it falls too low, you may face a margin call.
Margin Call and Stop-Out
A margin call is a warning from the broker when your available equity approaches the maintenance margin level. It signals that you need to deposit additional funds or close positions to restore the required margin level.
For example, in the previous case you opened a $10,000 position and set aside $100 as initial margin. Suppose your broker requires a maintenance margin of $50 (50% of the initial margin). If losses reduce your equity to that $50 level, you will receive a margin call. This means you must add funds or cover your losses; otherwise you may face a forced closure.
If you do not act and losses continue, you can reach the stop-out level. At this critical point, the broker automatically closes your positions to prevent your account from going into negative balance. In the same example, if your equity fell to $30 (below the maintenance margin), the broker would execute a stop-out and close the position before you lose more funds.
This process can be visualized in a diagram of initial margin, maintenance margin, and stop-out levels.
Leverage in Forex, Indices, and Stocks
The allowed leverage varies by asset type and regulation. In Forex, due to its high liquidity, brokers often offer relatively high leverage. For example, many brokers provide leverage from 1:30 up to 1:100 or more on major currency pairs.
For stock indices (such as the S&P 500 or DAX), leverage is typically more moderate, around 1:20 in many markets.
In the stock market for individual shares, leverage is usually much lower, for example 1:5 or 1:2, due to higher volatility and specific regulations.
These values also depend on broker policies and regulatory rules in each country.
Risks of Excessive Leverage and Risk Management
Leverage is a double-edged sword: it amplifies both profits and losses. With very high leverage, even small market moves against you can wipe out your capital quickly. For example, with 1:100 leverage, a 1% drop in the position value would completely eliminate the initial margin.
Therefore, it is crucial to manage risk carefully: never risk more than you can afford to lose on a single trade, use stop-loss orders to limit potential losses, and set your leverage to a level that matches your experience.
Some of the main risks associated with excessive leverage include:
- Amplified losses: you can lose large sums of money when the market moves against you.
- Frequent margin calls: high leverage makes it more likely that your equity will approach the required margin and trigger warnings.
- Emotional pressure: increased volatility can lead to stress and impulsive decisions.
- Total loss of capital: in extreme cases without adequate protection, you could lose more than your initial deposit.
